Download - JIS A 9521 - zb.guaihou.comzb.guaihou.com/stdpool/JIS A 9521-2014-en.pdf · JIS B 7502 Micrometer callipers JIS B 7503 Mechanical dial gauges JIS B 7507 Vernier, dial and digital

JIS A 9521: 2014

JAPANESE INDUSTRIAL STANDARD

Translated and Published by

Japanese Standards Association

Thermal insulation materials for buildings

ICS 91.100.60;91.120.10

Reference number: JIS A 9521 : 2014 (E)

PROTECTED BY COPYRIGHT 27 S

A 9521 : 2014

Date of Establishment: 1979-03-01

Date of Revision: 2014-09-22

Date of Public Notice in Official Gazette: 2014-09-22

Investigated by: Japanese Industrial Standards Committee

Standards Board

Technical Committee on Architecture

JIS A 9521 :2014, First English edition published in 2015-11

Translated and published by: Japanese Standards Association Mita MT Building, 3-13-12, Mita, Minato-ku, Tokyo, 108-0073 JAPAN

In the event of any doubts arising as to the contents, the original JIS is to be the final authority.

© JSA 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.

Printed in Japan KK/AT

PROTECTED BY COPYRIGHT

A 9521: 2014

Contents

Page

1 Scope················································· ...................................................... ···················1

2 Normative references ...................................................... ········································1

3 Terms and definitions ............................................................................................. 2

4 Classification and product symbols ...................................................... ················3 4.1 Classification ............................................................................................................ 3 4.2 Product symbols ....................................................................................................... 6

5 Quality ............................................................................................................ ··········9

5.1 Characteristics ...................................................... ···················································9 5.2 Dimensions ............................................................................................................ ·14 5.3 Appearance ............................................................................................................. 16

6 Tests ............................................................................................................ ············16 6.1 Test place and conditioning before testing ........................................................ 16 6.2 Sampling and preparation of test specimen ...................................................... 17 6.3 Appearance ............................................................................................................. 18 6.4 Dimensions ............................................................................................................ ·18

6.5 Formaldehyde emission characteristics ...................................................... ········22 6.6 Thermal conductivity ...................................................... ······································25 6.7 Density ............................................................................................................ ········27

6.8 Coefficient of moisture permeability ...................................................... ············29 6.9 Compressive strength ...................................................... ·····································29 6.10 Bending strength ...................................................... ·············································30 6.11 Combustibility ...................................................... ··················································31

6.12 Water absorption amount··············································· ······································31 6.13 Swelling in thickness after immersion in water·· ............................................. 31 6.14 Moisture content ...................................................... ··············································31 6.15 Thermal resistance ...................................................... ··········································32

7 Inspection················································································································ 32 7.1 Classification of inspections and inspection items ···········································32 7.2 Judgement criteria ...................................................... ··········································34

8 Designation of products ...................................................... ··································34

8.1 Symbols for designation of thermal conductivity ·············································34 8.2 Symbols for designation of thermal resistance ·················································35 8.3 Designation of products ...................................................... ··································35

9 Marking··············································· ...................................................... ··············36

Annex A (normative) Ignition test method ...................................................... ··········37

(i)


A 9521 : 2014

Annex B (normative) Combustibility test method ..................................................... 41

Annex C (normative) Water absorption test method ················································45

Annex D (informative) Comparison table between previous and current editions of this Standard on technically significant revisions .................................................................................. 47

(ii)


A 9521: 2014

Foreword

This translation has been made based on the original Japanese Industrial Standard revised by the Minister of Economy, Trade and Industry, through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law.

Consequently JIS A 9521 :2011 is replaced with this Standard.

However, JIS A 9521: 2011 may be applied in the JIS mark certification based on the relevant provisions of Article 19 Clause 1, etc. of the Industrial Standardization Law until September 21, 2015.

This JIS document is protected by the Copyright Law.

Attention is drawn to the possibility that some parts of this Standard may conflict with patent rights, applications for a patent after opening to the public or utility model rights. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying any of such patent rights, applications for a patent after opening to the public or utility model rights.

(iii)


JAPANESE INDUSTRIAL STANDARD JIS A 9521 : 2014

Thermal insulation materials for buildings

1 Scope

This Japanese Industrial Standard specifies the thermal insulation materials mainly used for dwellings or buildings at the ordinary temperature (hereafter referred to as "thermal insulation materials"). In this Standard, the cellular plastics thermal insulation materials in which fluorocarbons 1) are not used as a foaming agent are included in the scope.

This Standard is not applicable to the thermal insulation materials used under the condition at particular temperature and humidity such as a cold-storage warehouse, and the heat insulation materials used for facility equipment, piping, etc. for dwellings or buildings.

Note 1) Fluorocarbons refer to chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC), but do not include hydrofluoroolefin (HFO) which is represented by HFO-1233zd and HFO-1336mzz.

2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. The most recent editions of the standards (including amendments) indicated below shall be applied.

JIS A 0202 Thermal insulation-Vocabulary

JIS A 1324 Measuring method of water vapor permeance for building materials

JIS A 1412-1 Test method for thermal resistance and related properties of thermal insulations-Part 1: Guarded hot plate apparatus

JIS A 1412-2 Test method for thermal resistance and related properties of thermal insulations-Part 2: Heat flow meter apparatus

JIS A 1423 Simplified test method for emissivity by infrared radio meter

JIS A 1901 Determination of the emission of volatile organic compounds and aldehydes for building products-Small chamber method

JIS A 1902-1 Determination of the emission of volatile organic compounds and aldehydes for building products-Sampling, preparation of test specimens and testing condition-Part 1: Boards, wallpaper and floor materials

JIS A 1902-4 Determination of the emission of volatile organic compounds and aldehydes for building products-Sampling, preparation of test specimens and testing condition-Part 4: Heat-Insulating material boards

JIS A 5430 Fibre reinforced cement boards

JIS A 6111 House wrapping sheets

JIS A 6930 Plastic films vapour barrier for residential use


2 A 9521 : 2014

JIS B 7502 Micrometer callipers

JIS B 7503 Mechanical dial gauges

JIS B 7507 Vernier, dial and digital callipers

JIS B 7512 Steel tape measures

JIS B 7516 Metal rules

JIS G 4305 Cold-rolled stainless steel plate, sheet and strip

JIS K 7100 Plastics-Standard atmospheres for conditioning and testing

JIS K 7201-2 Plastics-Determination of burning behaviour by oxygen indexPart 2: Ambient-temperature test

JIS K 7220 Rigid cellular plastics-Determination of compression properties

JIS K 7221-2 Rigid cellular plastics-Determination of flexural properties-Part 2: Determination of flexural strength and apparent flexural modulus of elasticity

JIS K 7222 Cellular plastics and rubbers-Determination of apparent (bulk) density

JIS K 7225 Rigid cellular plastics-Determination of water vapour transmission properties

JIS P 3401 Kraft papers

JIS Z 0208 Testing methods for determination of the water vapour transmission rate of moisture-proof packaging materials (dish method)

JIS Z 1514 Polyethylene coated paper

JIS Z 1520 Laminated aluminium foils

JIS Z 1702 Polyethylene films for packaging

3 Terms and definitions

For the purpose of this Standard, the terms and definitions given in JIS A 0202, and the following apply.

3.1 thermal insulation material

material used for the purpose of thermal insulation of which the thermal conductivity at 23°C is 0.065 W/(m·K) or under

NOTE: The definition in JIS A 0202 is altered.

3.2 base material

portion indispensable to make the most of the thermal insulation property of a thermal insulation material

It refers to the fibrous porous medium portion for fibrous thermal insulation materials, and the cellular porous medium portion for cellular plastics thermal insulation materials.


3.3 covering material

3 A 9521 : 2014

material that covers a base material used for the purpose of vapour barrier, radiation, protection, improvement in workability, etc. of man made mineral fibre thermal insulation materials

NOTE: The definition in JIS A 0202 is altered.

3.4 facing

sheet-like or film-like material integrated with the front face or back face of the base material of cellular plastics thermal insulation materials

3.5 moulded facing

facing necessary for moulding a base material which is integrated with the base material at the time of manufacturing thermal insulation materials

3.6 skin layer

resin layer of a base material moulded on the surface of thermal insulation material at the time of foaming cellular plastics thermal insulation materials

4 Classification and product symbols

4.1 Classification

The thermal insulation materials are classified as follows.

a) Classification according to base material The classification of thermal insulation materials according to base materials shall be as given in table 1.

Table 1 Classification according to base materials

Type Base material Explanation

Glass wool thermal Glass wool Thermal insulation material that fibre insulation materials manufactured by melting glass is moulded

Man made using binder. Covering material is used as

mineral fibre necessary.

thermal Rock wool thermal Rock wool Thermal insulation material that fibre insulation insulation materials manufactured by melting slags and minerals materials whose main components are lime and silicic

acid using binder. Covering material is used as necessary.

Organic fibre Insulation fibre Wood fibre Fibreboards made by moulding vegetable fibre thermal thermal insulation such as wood, mainly. insulation materials materials


4 A 9521 : 2014

Table 1 (concluded)

Type Base material Explanation

Beads method Beads method Thermal insulation material cut out from block polystyrene foam polystyrene made by foamed-moulding in frame or foamed-thermal insulation foam moulding of expandable beads of polystyrene or materials its copolymer to which foaming agent, flame

retardant agent (not including HBCD) and additive agent are added.

Extruded Extruded Thermal insulation material moulded by polystyrene polystyrene continuous extrusion of foamed-moulding of foam thermal foam polystyrene or its copolymer to which foaming insulation agent and additive agent are melted and mixed, materials or by cutting out from the extruded foamed-

moulded block.

Cellular Rigid urethane Rigid urethane Thermal insulation material made by foamed-plastics foam thermal foam moulding with polyisocyanate, polyol and thermal insulation foaming agent as base compounds, by cutting insulation materials out from block made by foamed-moulding, or materials that with moulded facing made by foamed-

moulding between moulded facings for integration.

Polyethylene foam High -expanding Thermal insulation material that polyethylene thermal insulation polyethylene or its copolymer is foamed-moulded to which materials foam foaming agent and additive agent are mixed.

Phenolic foam Phenolic foam Thermal insulation material with moulded thermal insulation facing made by foaming resol resin, foaming materials agent and curing agent as base compounds

between moulded facings to be moulded to sandwich-like form, or without moulded facing made by foaming resol resin, foaming agent and curing agent as base compounds.

b) Classification according to packaging The classification of thermal insulation materials according to the packaging method shall be as given in table 2. For those not requiring the compressed package, the symbol may be omitted.

Table 2 Classification according to packaging

Packaging method Symbol

Compressed package L

Uncompressed package H

c) Classification according to covering materials, facing or skin layer The classification of thermal insulation materials according to covering materials, facing or skin layer shall be as given in table 3.


5 A 9521 : 2014

Table 3 Classification according to covering material, facing or skin layer

Type Type of covering material, facing

or skin layer

Man made With glossy mineral surface covering fibre material thermal insulation materials

Cellular plastics thermal insulation materials

With vapour barrier covering material

With other covering material

Without covering material, facing or skin layer

With water vapour permeance facing

With non-water vapour permeance facing

With skin layer

Without covering material, facing or skin layer

Symbol

F

v

C

N

S

P

x N

Explanation

Glossy surface covering material (covering material with glossy surface): laminated aluminium foil, metal-evaporated plastic film, etc. specified in JIS Z 1520 of which the emissivity E

obtained according to JIS A 1423 is 0.2 or under.

Vapour barrier material (covering material for vapour barrier as main purpose): polyethylene film specified in JIS Z 1702, plastic vapour barrier film specified in JIS A 6930 and asphalt-saturated water proof paper, etc. of which the vapour permeability obtained according to the test method using the test apparatus in JIS Z 0208 or that with accuracy equivalent to or better to this is 75 g/m2 or under per 24 h. The test condition at this time shall be the condition A specified in JIS Z 0208.

Other covering materials (covering materials for protection and workability improvement as main purpose): house wrapping sheet specified in JIS A 6111, craft paper specified in JIS P 3401, perforated polyethylene film, glass fibre non-woven fabric, cloth such as victoria lawn, etc.

Moisture permeable facing: craft paper specified in JIS P 3401, polyester non-woven fabric, polypropylene non-woven fabric, glass fibre non-woven fabric filled with inorganic material, glass fibre non-woven fabric, etc.

Non-moisture permeable facing: polyethylene coated paper specified in JIS Z 1514, the laminated aluminium foils specified in JIS Z 1520 or materials equivalent or superior thereto in quality.

The covering material checked that it does not ignite by the ignition test method specified in Annex A shall be used.

For the man made mineral fibre thermal insulation materials, symbols shall be arranged so as to be that of indoor side followed by that of outdoor side.

Example 1 Indoor one side with glossy surface covering material and outdoor one side with vapour barrier covering material: FV

Example 2 Both sides with vapour barrier covering material: VV

For the cellular plastics thermal insulation materials, one symbol shall be used when the facings in both front-face and back-face sides are the same, and two symbols shall be arranged when they are different.

Example 1 Both sides with water vapour permeance facing: S, both sides with non-water vapour permeance facing: P, both sides with skin layer: X

Example 2 One side with water vapour permeance facing and one side with non-water vapour permeance facing: SP, one side with non-water vapour permeance facing: PN


6 A 9521 : 2014

4.2 Product symbols

The types and product symbols for thermal insulation materials shall be as given in table 4 to table 6.

Table 4 Types and product symbols for man made mineral fibre thermal insulation materials

Type Product Division according Division according symbol to packaging to covering material

10-50 GW10-50 L FF

Common product 10-49 GW10-49 H FV

10-48 GW10-48 FC

HG10-47 GWHG10-47 FN

HG10-46 GWHG10-46 VF High -performance

HG10-45 GWHG10-45 VV product HG10-44 GWHG10-44 VC

HG10-43 GWHG10-43 VN

12-45 GW12-45 CF Common product

12-44 GW12-44 CV

HG12-43 GWHG12-43 CC High -performance

HG12-42 GWHG12-42 CN product HG12-41 GWHG12-41 NF

High -performance HG14-38 GWHG14-38 NV product HG14-37 GWHG14-37 NC

16-45 GW16-45 NN Common product

16-44 GW16-44 Glass wool thermal HG16-38 GWHG16-38 insulation High -performance

HG16-37 GWHG16-37 materials product

HG16-36 GWHG16-36

20-42 GW20-42

Common product 20-41 GW20-41

20-40 GW20-40

HG20-38 GWHG20-38

HG20-37 GWHG20-37 High -performance

HG20-36 GWHG20-36 product HG20-35 GWHG20-35

HG20-34 GWHG20-34


HG24-36 GWHG24-36

High -performance HG24-35 GWHG24-35 product HG24-34 GWHG24-34

HG24-33 GWHG24-33




Glass wool thermal insulation materials

Rock wool thermal insulation material

Table 4 (concluded)

Type Product Di vision according symbol to packaging




HG36-34 GWHG36-34


HG36-31 GWHG36-31

HG38-34 GWHG38-34


HG38-31 GWHG38-31










RWLA

24 kg/m3 or more in density RWLB

RWLC

RWLD

RWMA

30 kg/m3 or more in density RWMB

RWMC

RWHA

60 kg/m3 or more in density RWHB

RWHC

7 A 9521 : 2014

Division according to covering material

Table 5 Types and product symbols for organic fibre thermal insulation material

Type Product symbol

Insulation fibre Fibremat 1M

thermal insulation Fibreboard Unpolished board DIB material Polished board DIBP


8 A 9521 : 2014

Table 6 Types and product symbols for cellular plastics thermal insulation materials

Type Product Division according to symbol facing or skin layer

No. 1 EPSl Beads method polystyrene No.2 EPS2 foam thermal insulation material No.3 EPS3

No.4 EPS4

A XPSlbA

Class 1 b B XPSlbB

C XPSlbC

A XPS2bA S,P,X,

Class 2 b B XPS2bB SP, SX, SN,

C XPS2bC PX, PN,XN,

Extruded polystyrene foam A XPS3aA N a)

thermal insulation material B XPS3aB a

C XPS3aC

D XPS3aD Class 3

A XPS3bA

B XPS3bB b

C XPS3bC

D XPS3bD

Class 1 PUFl N a)

No. 1 PUF2.l Rigid urethane foam

No.2 PUF2.2 thermal insulation material Class 2 P No.3 PUF2.3

No.4 PUF2.4

No. 1 PEl.l Class 1

Polyethylene foam thermal No.2 PE1.2 N a) insulation material Class 2 PE2

Class 3 PE3

I PFl.lAl A

II PFl.lA2

I PFl.lBl B

II PFl.lB2

Phenolic foam thermal I PFl.lCl S, P, N a)

insulation material Class 1 No. 1 C II PFl.lC2 SP, SN, PN

I PFl.lDl D

II PFl.lD2

I PFl.lEl E

II PF1.lE2


Table 6 (concluded)

Type Product symbol

I PF1.2Al A

II PF1.2A2

I PF1.2Bl B

II PF1.2B2

I PF1.2Cl No.2 C

II PF1.2C2

I PF1.2Dl D

II PF1.2D2

I PF1.2El E

II PF1.2E2 Class 1

I PF1.3Al A

II PF1.3A2

I PF1.3Bl B

Phenolic foam thermal II PF1.3B2 insulation material I PF1.3Cl

No.3 C II PF1.3C2

I PF1.3Dl D

II PF1.3D2

I PF1.3El E

II PF1.3E2

I PF2.1Al No.1 A

II PF2.1A2

I PF2.2Al Class 2 No.2 A

II PF2.2A2

I PF2.3Al No.3 A

II PF2.3A2

I PF3.1Al Class 3 No.1 A

II PF3.1A2

Note a) It means the marking on product or package is not required.

5 Quality

5.1 Characteristics

9 A 9521 : 2014

Division according to facing or skin layer

The characteristics shall comply with table 7 to table 10 when tested according to 6.5 to 6.14.

However, for the product that does not use the materials emitting formaldehyde such as urea resin, melamine resin, phenol resin, resorcinol resin, formaldehyde system antiseptics, monomer containing methylol group and rongalite system catalyst, the formaldehyde emission characteristics may be taken as F*" *" *" *" without performing the test of 6.5. The product here refers to the product itself identified by product symbols in table 4 to table 6.


10 A 9521 : 2014

Table 7 Characteristics of man made mineral fibre thermal insulation materials

Type Density Thermal conductivity kg/m3 W/(m· K)

10-50 0.050 max.

Common product 10-49 0.049 max.

10-48 0.048 max.

HG10-47 0.047 max. 10±2

HG10-46 0.046 max. High -performance

HG10-45 0.045 max. product HG10-44 0.044 max.

HG10-43 0.043 max.

12-45 0.045 max. Common product

12-44 0.044 max.

HG12-43 12±2 0.043 max. High -performance


High -performance HG14-38 0.038 max. product 14±2

HG14-37 0.037 max.

16-45 0.045 max. Common product

16-44 0.044 max.

HG16-38 16±2 0.038 max. High -performance

HG16-37 0.037 max. Glass wool product thermal HG16-36 0.036 max. insulation 20-42 0.042 max. materials


20-40 0.040 max.

HG20-38 0.038 max. 20±2



HG20-34 0.034 max.


HG24-36 0.036 max.

High -performance HG24-35 24±2 0.035 max. product HG24-34 0.034 max.

HG24-33 0.033 max.


HG28-34 28±4 0.034 max. product HG28-33 0.033 max.


HG32-35 0.035 max. High -performance 32±4 product HG32-34 0.034 max.

HG32-33 0.033 max.


Table 7 (concluded)

Type Density

kg/m3

HG36-34

High-performance HG36-33 product 36±4

HG36-32

HG36-31

HG38-34

High-performance HG38-33 product 38±4

HG38-32

HG38-31 Glass wool Common product 40-36 thermal insulation HG40-34

High-performance 40±4 materials product HG40-33

HG40-32

Common product 48-35

HG48-33 High-performance 48±4 product HG48-32

HG48-31

Common product 64-35 64±6



LA

LB 24 min.

LC

Rock wool LD

thermal MA insulation MB 30 min. materials

MC

HA

HB 60 min.

HC

11 A 9521 : 2014

Thermal conductivity W/(m· K)

0.034 max.

0.033 max.

0.032 max.

0.031 max.

0.034 max.

0.033 max.

0.032 max.

0.031 max.

0.036 max.

0.034 max.

0.033 max.

0.032 max.

0.035 max.

0.033 max.

0.032 max.

0.031 max.

0.035 max.

0.033 max.

0.033 max.

0.045 max.

0.043 max.

0.041 max.

0.039 max.

0.038 max.

0.037 max.

0.036 max.

0.036 max.

0.035 max.

0.034 max.

Table 8 Characteristics of organic fibre thermal insulation material

Type Density Thermal Bending Swelling in Moisture conductivity strength thickness after content

immersion in water

kg/m3 W/(m· K) N/cm2 % %

Insulation Fibremat 30 min. 0.040 max. Not specified Not specified 5 or over up to fibre thermal Fibreboard 150 min. 0.052 max. 0.5 min. 10 max. and incl. 13 insulation material


12 A 9521 : 2014

Table 9 Characteristics of cellular plastics thermal insulation materials

Type Density Thermal Coefficient Com- Bending Combustibility Water conduc- of moisture pressive strength absorp-tivity permeability strength tion

(For thick- amount ness 25 mm)

kg/m3 W/(moK) ng/(m2 ° s ° Pa) N/cm2 N/cm2 g/100 cm2

Beads method No.1 30 min. 0.034 max. 145 max. 16 min. 32 min. polystyrene No.2 25 min. 0.036 max. 205 max. 12 min. 25 min. foam thermal 1.0 max. insulation No.3 20 min. 0.038 max. 250 max. 8 min. 18 min. material No.4 15 min. 0.041 max. 290 max. 5 min. 10 min.

A 0.040 max. -

Class 1 b B 20 min. 0.038 max. 16 min. Flame shall be -

C 0.036 max. extinguished

A 0.034 max. within 3 s - without ember,

Class 2 b B 25 min. 0.032 max. 18 min. and combustion -

Without skin 20 min. shall not be Extruded C 0.030 max. polystyrene

layer continued A 0.028 max. 145 max., exceeding the

foam thermal -With skin combustion 0.01 max.

insulation B 0.026 max.

material a - layer 10 min. limiting line. C 0.024 max. 55 max. -D 0.022 max.

Class 3 25 min. A 0.028 max.

-

B 0.026 max. b - 20 min. 25 min.

C 0.024 max. -

D 0.022 max.

Combustion time shall be within 120 s

Class 1 35 min. 0.029 max. 185 max. 20 min. 25 min. and combustion Rigid length shall be urethane 60 mm or foam thermal under. 3.0 max. insulation material No.1 35 min. 0.023 max. 10 min. 25 min.

No.2 25 min. 0.024 max. 8 min. 15 min. Class 2 40 max. -

No.3 35 min. 0.027 max. 10 min. 25 min.

No.4 25 min. 0.028 max. 8 min. 15 min.

Polyethylene No.1 30 max.

Class 1 10 min. 0.042 max. foam thermal No.2 55 max. insulation 2 min. - - 2.0 max.

material Class 2 20 min. 0.038 max. 30 max.

Class 3 10 min. 0.034 max. 150 max.

I A f--- 0.022 max.

I! - f---

I B r-- 0.021 max.

I! Phenolic - f---

foam thermal I Oxygen index Class 1 No.1 C f--- 45 min. 0.020 max. 60 max. 15 min. 25 min. 4.0 max.

insulation I! 28 min. material - r--

I D f--- 0.019 max.

I! - f---

I E r-- 0.018 max.

I!


Table 9 (concluded)

Type Density Thermal Coefficient Com-conduc- of moisture pressive tivity permeability strength

(For thick-ness 25 mm)

kg/m3 W/(moK) ng/(m2 ° s ° Pa) N/cm2

I A - 0.022 max.

I! f-- -

I B - 0.021 max.

I! r-- -

I No.2 C - 25 min. 0.020 max. 60 max. 10 min.

I! f-- -

I D - 0.019 max.

I! r-- -

I E - 0.018 max.

I! Class 1

I A - 0.022 max.

I! f-- -

Phenolic I

B - 0.021 max. foam thermal I! insulation r-- -

material I

No.3 C - 15 min. 0.020 max. 100 max. 5 min. I!

f-- -I

D - 0.019 max. I!

f-- -I

E - 0.018 max. I!

I No.1 A - 45 min. 0.036 max. 15 min.

I!

I Class 2 No.2 A - 35 min. 0.034 max. 10 min.

I! 145 max.

I No.3 A - 25 min. 0.028 max. 7 min.

I!

I Class 3 No.1 A - 13 min. 0.035 max. Imin.

I!

Bending strength

N/cm2

15 min.

10 min.

25 min.

20 min.

15 min.

2 min.

13 A 9521 : 2014

Combustibility Water absorp-

tion amount

g/100 cm2

Oxygen index 5.0 max.

28 min.


26 min.

4.0 max.


28 min.

10 max.

Table 10 Formaldehyde emission characteristics

Type Division Symbol Emission factor of formaldehyde

Glass wool thermal insulation material F****Grade F**** 5 !!g/(m2• h) max.

Rock wool thermal insulation material F***Grade Phenolic foam thermal insulation material

F*** 20 !!g/(m2• h) max.

Insulation fibre thermal insulation material F****Grade F**** 5 !!g/(m2• h) max.

Beads method polystyrene foam thermal insulation material Extruded polystyrene foam thermal insulation material Rigid urethane foam thermal insulation material Polyethylene foam thermal insulation material


14 A 9521 : 2014

5.2 Dimensions

5.2.1 Thickness

The range for thickness shall be as given in table 11, and the tolerances on thickness shall comply with table 11 when tested according to 6.4.

The manufacturer shall select the product thickness from the range for thickness specified in table 11 and it is taken as the nominal thickness.

Table 11 Thickness

Unit: mm

Type Division according to Thickness range Tolerance on nominal packaging thickness

Glass wool thermal Compressed Plate-shaped 50 or over up to + Not specified, 0 insulation material package product and incl. 200

Rolled 50 or over up to product and incl. 200

Uncompressed Plate-shaped 20 or over up to +3,0 package product and incl. 150

Rock wool thermal Compressed package 50 or over up to + Not specified, 0 insulation material and incl. 200

Uncompressed package 20 or over up to +5, -3 and incl. 150

Insulation Fibremat - 40 or over up to +5.0, -3.0 fibre and incl. 200 thermal Fibreboard 10 or over to and Unpolished board ± 1.5, insulation excl. 30 Polished board ± 1.0 material

30 or over up to Unpolished board ± 2.0, and incl. 60 Polished board ± 1.0

Beads method - 10 or over up to +2,0 polystyrene foam and incl. 50 thermal insulation Over 50 up to +2,0 material and incl. 300

Over 300 up to +3,0 and incl. 600

Extruded polystyrene 15 or over up to Without skin layer + 2,0 foam thermal insulation and incl. 160 With skin layer + 2, -1 material

Rigid urethane foam 5 or over to and ±2 thermal insulation excl. 150 material 150 or over up to ±5

and incl. 300

Polyethylene foam 5 or over to and + 1.5, -1.0 thermal insulation excl. 10 material 10 or over to and +2.0, -1.5

excl. 25

25 or over to and +3.0, -1.5 excl. 50

50 or over to and +4.0, -2.5 excl. 90

90 or over +5, -3


Table 11 (concluded)

15 A 9521 : 2014

Unit: mm

Type Division according to Thickness range Tolerance on nominal packaging thickness

Phenolic foam thermal - 5 or over up to Class I: + 2, -1.0 insulation material and incl. 100 Class II: + 2, a

Over 100 up to Class I: +3,-1 and incl. 300 Class II: + 3, a

5.2.2 Width and length The ranges for width and length shall be as given in table 12, and the tolerances on

width and length shall comply with table 12 when tested according to 6.4.

The manufacturer shall select the dimensions (width and length) of product from the ranges of dimensions (width and length) specified in table 12.

Table 12 Width and length

Unit: mm

Type Division Width Length according to

Range of Tolerance on Range of Tolerance on packaging dimension dimension dimension dimension

Glass wool thermal Com- Plate- 40 or over +20, a 40 or over + Not specified, a insulation material pressed shaped up to and up to and

package product incl. 1 200 incl. 3 000

Rolled 40 or over 3 000 or over product up to and up to and

incl. 1 200 incl. 33 000

Uncom- Plate- 40 or over +8, a 40 or over + Not specified, a pressed shaped up to and up to and package product incl. 1 200 incl. 3 000

Rock wool thermal Compressed 250 or over +20, a 800 or over + Not specified, a insulation material package up to and up to and

incl. 1 000 incl. 33 000

Uncompressed 250 or over +8, a 800 or over + Not specified, a package up to and up to and

incl. 1 000 incl. 11 000

Insulation Fibremat - 385 or over ±5 600 or over ±5 fibre thermal up to and up to and insulation incl. 600 incl. 1240 material

Fibreboard 455 or over ±4 1 210 or over ±4 up to and up to and incl. 1 820 incl. 3 030

Beads method polystyrene - 10 or over 10 or over to and 10 or over 10 or over to and foam thermal insulation up to and excl. 1 000: ± 8 up to and excl. 1 000: ± 8 material incl. 6 000 1 000 or over up incl. 6 000 1 000 or over up

to and incl. to and incl. 6 000: ± 10 6 000: ± 10

Extruded polystyrene 100 or over Under 1 000: 100 or over Under 1 000: foam thermal insulation up to and + 10, a up to and + 15, a material incl. 2 000 1 000 or over: incl. 4 000 1 000 or over:

+ 15, a +20, a


16 A 9521 : 2014

Table 12 (concluded)

Unit: mm

Type Division Width Length according to

Range of Tolerance on Range of Tolerance on packaging dimension dimension dimension dimension

Rigid urethane foam - 30 or over Under 1 000: 100 or over Under 1 000: thermal insulation up to and ±8 up to and ±8 material incl. 2 000 1 000 or over: incl. 15000 1 000 or over:

± 10 ± 10

Polyethylene foam 20 or over Under 500: 150 or over Under 1 000: thermal insulation up to and ± 10 up to and +30,0 material incl. 1 000 500 or over: incl. 2 000 1 000 or over:

± 15 +50,0

Phenolic foam thermal 20 or over Under 1 000: 150 or over Under 1 000: insulation material up to and ±4 up to and ±4

incl. 3 000 1 000 or over: incl. 6000 1 000 or over: ±5 ±5

5.3 Appearance

There shall be no flaws, dirt, chipping and the like detrimental to practical use when tested according to 6.3.

6 Tests

6.1 Test place and conditioning before testing

6.1.1 Man made mineral fibre thermal insulation materials

The test specimens shall be prepared according to 6.2.1 by taking from the products stored at ordinary temperature and humidity. However, the test specimens for formaldehyde emission characteristics shall be prepared as specified in 6.5.1 a). The tests of dimensions and density shall be performed at ordinary temperature and humidity. The test of thermal conductivity shall be performed with the apparatus housed in a thermostatic chamber in which the ambient temperature can be controlled so as to be equivalent to the average temperature 23°C ± 1 °C of the test specimen. The test place of formaldehyde emission characteristics shall be as specified in clause 7 of JIS A 1901.

6.1.2 Organic fibre thermal insulation materials

The test specimens in an air-dried state or those of which the mass becomes constant at a temperature of 20°C ± 2 °C and at a humidity of (65 ± 5) % shall be used.

The air-dried state refers to the state in which the test specimens are left standing in a well-ventilated room for seven days or more. The material shall be ensured that its moisture content is adjusted in manufacturing, or the moisture content is equivalent to that in the state of product shipping. Furthermore, the constant mass refers to a mass of which the change rate becomes 0.1 % or under when the mass every 24 h, or of which the constancy is confirmed by a reasonable method when it is difficult to measure the change rate. The test of formaldehyde emission characteristics shall be as specified in 6.5.2.


6.1.3 Cellular plastics thermal insulation materials

17 A 9521 : 2014

The conditioning of test specimen and the test place shall be as follows. The test of formaldehyde emission characteristics shall be as specified in 6.5.3.

a) The test place shall be kept under the standard temperature condition Grade 3 (temperature 23°C ± 5°C) and the standard humidity condition Grade 3 [relative humidity (5o~ig) %] as specified in JIS K 7100.

b) The test specimen shall be kept at the same temperature and relative humidity as a) for 16 h or more prior to the test.

6.2 Sampling and preparation of test specimen


The sample shall be taken from the products, in general, and the test specimen shall be the product of full size 2) or that cut from the centre part of the sample except the peripheral part, or that manufactured under the same conditions as those of the product.

The number of samples shall be three or more from one package in the case of the product packaged in a plate-like state, and one package in the case of the product packaged in a roll-like state. For the glass wool thermal insulation material, for both the product packaged in a plate-like state and the product packaged in a roll-like state, samples shall be taken from the packages of necessary number so that five or more pieces can be taken. However, the formaldehyde emission characteristics test is excluded.

Note 2) The full size refers to a size of a product as it is.


The sample shall be taken from the products, in general, and the test specimen shall be the product of full size or that cut from the centre part of the sample except the peripheral part excluding the formaldehyde emission characteristics test.


The sampling of the cellular plastics thermal insulation materials and the preparation of the test specimens shall be as follows.

a) The products continuously manufactured under the same design and manufacture conditions as those that have passed the type inspection shall be taken as one lot.

b) The sample shall be taken from the product, and for the product with a facing except a moulded facing, the sample shall be that before attaching the facing. However, in the formaldehyde emission characteristics test, the sample shall be taken from the product irrespective of with or without a facing, and the test specimen shall be prepared according to 6.5.3 a).

c) The number of test specimens shall be one unless otherwise specified in the subclause of each test. When the test specimen of the required size cannot be prepared from the sample, the test specimen manufactured under the same condition as the product to the size enough for the preparation of the test specimen may be used as a sample.


18 A 9521 : 2014

6.3 Appearance

The appearance shall be checked visually and the like.

6.4 Dimensions


The measurement of dimensions of man made mineral fibre thermal insulation materials shall be as follows.

a) Test specimen The test specimen shall be as specified in 6.2.1.

b) Measuring instrument The measuring instruments shall be as follows.

1) For the measurement of thickness, an exclusive measuring instrument shown in figure 1 consisting of a load plate which is a rigid plate of 100 g ± 1 g in mass and 150 mm ± 1 mm in square size with a hole in the centre, and a needle which can be inserted freely through the said hole shall be used. For the measurement of the length of the needle projecting from the load plate, the metal rule specified in JIS B 7516 or the callipers specified in JIS B 7507 shall be used. The depth bar of Type M callipers specified in JIS B 7507 may be used in place of the said needle.

The thickness shall be measured in a unit of 0.5 mm.

2) The width and length shall be measured in a unit of 1 mm by using the metal rules specified in JIS B 7516. In the case where the length is 1 000 mm or more, the steel tape measures specified in JIS B 7512 may be used.

Hole diameter 2.5

Unit: mm

Needle diameter 2.0

Figure 1 Example of load plate and needle

c) Measuring procedure The measuring procedure shall be as follows.


1) Measuring procedure of width and length

19 A 9521 : 2014

1.1) The measurement of width and length of the product with covering material shall be performed after the covering material is removed. However, if the dimensions are changed by the removal of covering material, it shall be measured as it is.

1.2) For the measurement of the length of the test specimen whose length is under 1 000 mm, the measuring positions shall be 100 mm or more inside from the periphery of the test specimen specified in a), and the length shall be measured at two positions in parallel with each side respectively using a measuring instrument specified in b) with a reading accuracy of 1 mm. The average shall be taken as the length of the product. When it is difficult to measure at the position above-mentioned in terms of the dimension of a product, the length shall be measured at the centre part. Furthermore, the measurement of the width shall be also performed according to the same procedure.

1.3) For the measurement of the length of the test specimen whose length is 1 000 mm or more, the length shall be measured at one position in the centre part of a product using a measuring instrument specified in b) with a reading accuracy of 10 mm.

2) Measuring procedure of thickness

2.1) The test specimen shall be placed on a rigid flat plate such as a decorative plywood for measurement.

2.2) If the test specimen is compressed-packaged, for restoration of the thickness, the both ends in the width direction of the test specimen shall be held by hands and waved sufficiently so that it undulates in horizontal direction. The measurement shall be performed after 4 h has elapsed. In the case of a long test specimen which is difficult to wave without it touching the floor, the specimen may be cut to an appropriate length before this waving.

2.3) The thickness shall be measured at five points or more distributed almost equally so as to represent the whole test specimen in a position where the centre of the load plate is 100 mm or more inside from the end of the test specimen as shown in figure 2. The average shall be taken as the product thickness. For the product with covering material, a hole for measurement of thickness may be made in the covering material at the measuring position beforehand.


20 A 9521 : 2014

100

11

Unit: mm

Test ~specimen

~ ______________ ~~~2 ~

Figure 2 Example of thickness measuring positions for plate-shaped test specimen

2.4) The needle shall be inserted into the load plate of the exclusive instrument specified in b) 2) until it reaches the rigid flat plate, and while keeping the needle tip protruding from the load plate by more than the thickness of the test specimen, the needle tip shall be adjusted at the measuring position specified in 2.3) and the needle shall be perpendicularly inserted to the test specimen until it reaches the rigid flat plate. For the test specimen with covering material, the needle shall be perpendicularly inserted through the hole of covering material made in 2.3). While holding the needle inserted in the test specimen, the load plate shall be gently placed along the needle onto the test specimen.

2.5) After a lapse of 1 min or more, when sinking of the load plate has stopped, the load plate shall be removed from the test specimen while holding the needle tip projecting from the load plate with fingers, etc. In the case of rock wool thermal insulation material, the thickness of which is difficult to be changed under the external pressure applied at the time of the insertion of needle, so the needle may be inserted after setting the load plate at the measuring position specified in 2.3) and allowing it to stabilize.

2.6) The length of the needle projecting from the lower surface of the load plate shall be measured to the nearest 0.5 mm by means of the measuring instrument specified in b).

2.7) The procedure for measurement of thickness of thermal insulation material of the product with covering material shall be as follows.

2.7.1) The thickness including the covering material shall be measured according to 2.1) to 2.6).

2.7.2) The thickness of the covering material shall be measured at a position without adhesives by means of a micrometer specified in JIS B 7502 to the nearest 0.1 mm.

2.7.3) For the thickness of the thermal insulation material of a product with covering material, the measured value in 2.7.2) shall be subtracted from the measured value in 2.7.1). Where the measured value in 2.7.2) is 0.1 mm or under, the measured value in 2.7.1) shall be taken as the thickness of the thermal insulation material of the product with covering material.



21 A 9521 : 2014

The measurement of dimensions of organic fibre thermal insulation materials shall be as follows.


b) Measuring instrument The measurement of width and length shall be performed using a measuring instrument with an accuracy of 1 mm or better. Furthermore, the measurement of thickness shall be performed using a measuring instrument with an accuracy of 0.05 mm or better.

c) Measuring procedure The measuring procedure shall be as follows.

1) The measuring positions of width and length shall be about 100 mm inside from the periphery, and they shall be measured in parallel with each side at two positions, respectively. The respective average values shall be taken as the width and the length of the product.

2) The thickness shall be measured at four points 15 mm or more inside from the periphery of the test specimen, and the average of measurements at four points shall be taken as the thickness. In this case, the part in which the measuring instrument contacts the sample surface shall be a circle with a diameter of 6 mm or more.


The measurement of dimensions of cellular plastics thermal insulation materials shall be as follows.

a) Test specimen The test specimen shall be the sample as it is.

b) Measuring instrument The dimensions shall be measured using the metal rule specified in JIS B 7516 or the steel tape measures specified in JIS B 7512 in a unit of 1 mm. In the case where the length is 100 mm or under, the callipers specified in JIS B 7507 shall be used or that with the same accuracy in a unit of 0.1 mm.

c) Measuring procedure The measurement of dimensions shall be as follows.

1) The width and the length shall be measured at one position each, or at two positions in total, in the range of 50 mm to 100 mm from the both ends in the length and the width directions, respectively, and the respective average values shall be taken as the length and the width of a product. When the width or the length of a product is 200 mm or under, the measurement shall be performed at one position in the centre and the measurement shall be taken as the width or the length of a product.

2) The thickness shall be measured at three points or more in total, at one point each in the range of 20 mm to 100 mm from the both ends in the width direction and at one point or more in the range in which the remainder is halved, and the average shall be taken as the thickness of a product. When the length of the side to be measured is under 400 mm, the measurement shall be performed at one position in the centre and the measurement may be taken as the product thickness.


22 A 9521 : 2014

6.5 Formaldehyde emission characteristics


The test of formaldehyde emission characteristics of man made mineral fibre thermal insulation materials shall be as follows.

a) Test specimen The test specimen shall be as follows.

1) The sampling and the procedure for preparation of test specimen shall be as specified in JIS A 1902-4.

2) Necessary number of packages shall be taken from the products according to 6.2.1, and the test specimen shall be cut out from them in such calculated dimensions that the rate of the whole surface area of the test specimen to the volume of the test apparatus specified in b) (hereafter referred to as "sample load factor") is 10 m 2/m3 or under. In this case, the whole surface area of the test specimen means that including the surfaces of thickness.

3) In the case of testing a product with a thickness over 50 mm by making the sample load factor 10 m 2/m3 or under, the test specimen compressed to 50 mm thickness may be used. In this case, the surface area used for the calculation of sample load factor shall be the surface area of the test specimen with the nominal product thickness before compression.

NOTE: Examples of dimensions of test specimen, when the volume of the test apparatus is 20 L and the sample load factor is 10 m 2/m3 are shown in table 13.

Table 13 Examples of dimensions of test specimens with sample load factor 10 m 2/m3

Unit: mm

Nominal thickness Width x length x number of test specimens

100 145 x 145 x 2

75 162 x 162 x 2

60 172 x 172 x 2

55 175 x 175 x 2

50 179 x 179 x 2

4) The cut-out specimen shall be immediately tested. Where the test specimen needs to be stored until the date of the test, or where the test specimen is transferred to an outside agency for entrusting the test, the protection of the test specimen shall be performed as specified in JIS A 1902-4.

5) The preparation and packaging of test specimens shall be completed within 1 h.

b) Test apparatus The apparatus for formaldehyde emission characteristics test shall be as specified in clause 6 of JIS A 1901.

c) Test method The procedure of test shall be as follows.


23 A 9521 : 2014

1) The test of formaldehyde emission characteristics shall be as specified in clause 11 of JIS A 1901. However, the measuring conditions shall be as specified in clause 7 of JIS A 1902-4.

2) The test specimen specified in a) shall be gently placed in the apparatus for formaldehyde emission characteristics test (hereafter referred to as "small chamber") specified in b), and the test shall be started.

3) Within seven days from the start of the test, the exhaust air from the small chamber shall be collected twice by means of the collecting tube specified in clause 11 of JIS A 1901. The two collections should be performed consecutively without any time interval.

4) The concentration of formaldehyde in each of the two collections of exhaust air shall be obtained according to the analytical method specified in clause 12 of JIS A 1901 and the obtained concentration shall be taken as the formaldehyde concentration in the small chamber.

5) When any of the obtained formaldehyde concentrations in the small chamber exceeds 100 ~g/m3, the test shall be performed again from 2) by using a test specimen whose dimensions are changed so that the sample load factor is smaller than that at the start of the test. This procedure shall be repeated until none of the obtained concentrations exceeds 100 ~g/m3.

6) When none of the concentrations in the small chamber exceeds 100 ~g/m3, the emission factor shall be obtained as specified in clause 12 and clause 13 of JIS A 1901.

7) The emission factor shall be the average of the two results, which is rounded to an integer and expressed in ~g/(m2 . h).


The test of formaldehyde emission characteristics of organic fibre thermal insulation materials shall be as follows.


1) For the sampling and the procedure for preparation of test specimen, clause 4 and clause 5 of JIS A 1902-1 shall be referred to.

2) One package shall be taken from the products, and the test specimen shall be cut out from it in such calculated dimensions that the sample load factor becomes 2.2 m 2/m3 or under. In this case, the whole surface area of test specimen shall be the area including the surfaces of thickness for fibremats, and the area of the both front and back surfaces except the surfaces of thickness (end surfaces) of test specimen for fibreboards. Examples of dimensions when the sample load factor is 2.2 m2/m3 are shown in table 14.


24 A 9521 : 2014

Table 14 Examples of dimensions of test specimens with sample load factor 2.2 m 2/m3

Unit: mm

Type Width x length x number of test specimens

Fibremat thickness 79 x 79 x 1

100

Fibreboard thickness 147 x 147 x 1

9 to 60

3) The end surfaces of fibreboards shall be sealed by using aluminium tape and the like which does not influence the test.

4) The cut-out specimen shall be immediately tested. Where the test specimen needs to be stored until the date of the test, or where the test specimen is transferred to an outside agency for entrusting the test, the test specimen shall be stored under the ordinary temperature and humidity by wrapping it, for example, by using aluminium foil with glossy surface outside and furthermore by sealing it in a polyethylene bag in order to avoid the formaldehyde emission from the test specimen during the storage period up to the offering to test.

The preparation and packaging of test specimens shall be completed within 1 h.

b) Test apparatus The apparatus for formaldehyde emission characteristics test shall be as specified in 6.5.1 b).


1) The test of formaldehyde emission characteristics shall be as specified in clause 11 of JIS A 1901. However, the measuring conditions shall be as specified in clause 7 of JIS A 1902-1. The sample load factor shall be 2.2 m 2/m3

•

2) The test specimen specified in a) shall be gently placed in the small chamber specified in b), and the test shall be started.

3) Within seven days from the start of the test, the exhaust air from the small chamber shall be collected twice by means of the collecting tube specified in clause 11 of JIS A 1901. The two collections should be performed consecutively without any time interval.

4) The concentration of formaldehyde in each of the two collections of exhaust air shall be obtained according to the analytical method specified in clause 12 of JIS A 1901 and the obtained concentration shall be taken as the formaldehyde concentration in the small chamber.


The test of formaldehyde emission characteristics of cellular plastics thermal insulation materials shall be as follows.



25 A 9521 : 2014

1) For the sample, one package of the products which are manufactured and packaged by ordinary procedure, stored at ordinary temperature and relative humidity shall be taken within seven days after manufacture. Herein, "after manufacture" means that the products taken out from the manufacturing process are stored in order to stabilize the dimensions during a fixed period prior to shipment from the factory. Then, the dimensions of test specimen shall be calculated so that the sample load factor becomes 2.2 m 2/m3 and it is cut out from the sample. In this case, the whole surface area of test specimen shall be the area of the both front and back surfaces except the surfaces of thickness (end surfaces) of test speCImen.

The end surfaces shall be sealed by using aluminium tape and the like which does not influence the test. For the product with moulded facing, the product thickness shall be used as the test specimen thickness.

2) The cut-out specimen shall be immediately tested. When the test is entrusted to an outside agency, the test specimen shall be stored under the ordinary temperature and humidity by wrapping it, for example, by using aluminium foil with glossy surface outside and furthermore by sealing it in a polyethylene bag in order to avoid the formaldehyde emission from the test specimen during the storage period up to the offering to test (for four weeks at the maximum).

The preparation and packaging of test specimens shall be completed within 1 h.

b) Test apparatus The test apparatus for formaldehyde emission characteristics test shall be as specified in 6.5.1 b).


1) The test of formaldehyde emission characteristics shall be as specified in clause 11 of JIS A 1901. The air exchange rate shall be 0.5 times/h ± 0.05 timeslh.

2) The test specimen prepared according to a) shall be gently placed in a small chamber as it is and the test shall be started. The exhaust air from the small chamber shall be collected once from the chamber immediately after seven days (168 h) after the start of test and the emission factor shall be obtained.

3) When the obtained formaldehyde concentration in the small chamber exceeds 100 flg/m3

, the test shall be performed under the condition 100 flg/m3 or under in formaldehyde concentration in the chamber by reducing the sample load factor.

6.6 Thermal conductivity


The measurement of thermal conductivity of man made mineral fibre thermal insulation materials shall be as follows.


b) Test apparatus The test apparatus for the thermal conductivity shall be as specified in clause 2 of JIS A 1412-1 or clause 2 of JIS A 1412-2.



26 A 9521 : 2014

1) The test method of thermal conductivity shall be as specified in clause 3 of JIS A 1412-1 when clause 2 of JIS A 1412-1 is selected for the test apparatus, and as specified in clause 3 of JIS A 1412-2 when clause 2 of JIS A 1412-2 is selected for the test apparatus.

2) The thermal conductivity shall be that at 23°C ± 1 °C in average temperature. For the glass wool thermal insulation materials, the nominal thickness shall be used. For the rock wool thermal insulation materials, the thickness measured as specified in 6.4.1 shall be used for the uncompressed thermal insulation materials and the nominal thickness shall be used for the compressed thermal insulation materials.

3) The value of thermal conductivity shall be rounded off to three decimal places.

In consideration of the variation of the sample, the average of the measured values of three or more test specimens rounded to three decimal places may be taken as the value.


The measurement of thermal conductivity of organic fibre thermal insulation materials shall be as follows.

a) Test specimen The test specimen shall be the sample as it is which is taken from the product and one sheet shall be taken from one product.

b) Test apparatus The test apparatus for the thermal conductivity shall be as specified in clause 2 of JIS A 1412-1 or clause 2 of JIS A 1412-2.


1) The test method of thermal conductivity shall be as specified in clause 3 of JIS A 1412-1 when clause 2 of JIS A 1412-1 is selected for the test apparatus, and as specified in clause 3 of JIS A 1412-2 when clause 2 of JIS A 1412-2 is selected for the test apparatus.

2) The thermal conductivity shall be that at 23°C ± 1 °C in average temperature.

3) For the thermal conductivity, the value obtained in 2) rounded to three decimal places shall be used.


The measurement of thermal conductivity of cellular plastics thermal insulation materials shall be as specified in JIS A 1412-1 or JIS A 1412-2, and as follows.


For the product with moulded facing and skin layer, the product thickness shall be taken as the test specimen thickness.

For the product with the density of 20 kg/m3 or under, the minimum thickness of test specimen shall be determined taking 3.4.2 of JIS A 1412-1 or 1.8.3 b) of JIS A 1412-2 into consideration.

b) Test method The procedure of test shall be as follows.


27 A 9521 : 2014

1) The thermal conductivity shall be that at 23°C ± 1 °C in average temperature.

2) For the thermal conductivity, the value obtained in 1) rounded to three decimal places shall be used.

6.7 Density


The measurement of density of man made mineral fibre thermal insulation materials shall be as follows.

a) Test specimen The test specimen shall be as specified in 6.2.1, and the dimensions of test specimen shall be the original or 1 m 2 or more.

b) Measuring instrument The measuring instrument shall be as follows.

1) For the measurement of width and length, the measuring instrument specified in 6.4.1 b) shall be used.

2) For the measurement of mass, the balance having the measurement accuracy specified in table 15 shall be used.


1) The width and length shall be measured using a measuring instrument specified in b) 1) after removing the covering material of the test specimen if it has the covering material.

2) The mass shall be measured using a measuring instrument specified in b) 2) after removing the covering material of the test specimen if it has the covering material. However, for the test specimen of which the mass of the covering material including the quantity of adhesives applied is known beforehand, the mass shall be measured with the covering material attached, and the mass of the covering material including the quantity of adhesives applied shall be subtracted.

3) The density (p) shall be obtained by averaging the values obtained according to formula (1) from the mass (M) and volume (V) for the test specimen specified in a), and taken as an integer by rounding one decimal place.

When the volume of the test specimen is obtained, the nominal thickness shall be used as the test specimen thickness, and the width and the length obtained according to the method specified in c) 1) shall be used.

M p=v ................................................................................. (1)

where, p: density (kg/m3)

M: mass (kg)

V: volume (m3)


28 A 9521 : 2014

Table 15 Measuring accuracy of mass (man made mineral fibre thermal insulation materials)

Mass of test specimen Minimum graduation of balance

kg g

5 or over 50 max.

1 or over to and excl. 5 10 max.

0.5 or over to and excl. 1 5 max.

Under 0.5 1 max.


The measurement of density of organic fibre thermal insulation materials shall be as follows.

a) Test specimen The test specimen shall be taken from the centre part except the peripheral part of the sample whose thickness is as the product thickness in the dimensions of 100 mm in width and 100 mm in length. One sheet shall be taken from one product.

b) Test method For the density (p), the width, length and thickness are measured, respective average values are obtained to be the width, the length and the thickness of the test specimen, and the volume (V) shall be obtained. Then, the mass (M) shall be measured and the density shall be calculated according to formula (1).

In this case, the thickness, the width and length, and the mass shall be measured to the nearest 0.05 mm, 0.1 mm, 0.1 g respectively, and the density shall be calculated to the nearest 1 kg/m3.


The measurement of density of cellular plastics thermal insulation materials shall be as specified in JIS K 7222, and as follows.

a) Test specimen The density of the test specimen shall be measured with the sample in 6.2.3 b) as it is, or by cutting out the test specimen to the dimensions as the thickness of the sample as it is and the width and length of about 100 mm x

100 mm or about 200 mm x 200 mm.


b) Test apparatus The test apparatus shall be as specified in JIS K 7222.

c) Test method The average of the measured values of three test specimens shall be taken as the density.

The density of test specimen with the moulded facing shall be obtained according to formula (2).

m-mg p=-- ............................................................................ (2) V -Vg

where, p: density (kg/m3)

m: mass of test specimen (kg)


mg: mass of facing of test specimen (kg)

V: volume of test specimen (m3)

29 A 9521 : 2014

Vg: volume of facing of test specimen (m3)

6.8 Coefficient of moisture permeability

The measurement of coefficient of moisture permeability shall be as specified in JIS K 7225 or 5.2 of JIS A 1324, and as follows.

When using the method of JIS K 7225, "the water vapour transmission property" defined in JIS K 7225 shall be replaced with "the moisture permeability".


1) The test specimen shall be prepared by cutting out from the sample of 6.2.3 b).


2) The thickness of the test specimen shall be 25 mm ± 3 mm.

b) Test apparatus The test apparatus shall be as specified in clause 5 of JIS K 7225 or 5.2.1 of JIS A 1324.


1) The measurement of moisture permeability shall be as specified in clause 8 of JIS K 7225 or 5.2.2 of JIS A 1324.

2) For the test conditions, the temperature shall be 23°C ± 1°C, and the relative humidity gradient shall be (O+~) % for the low humidity side and (50 ± 2) % for high humidity side.

3) For the sample of which the coefficient of moisture permeability is small or the hygroscopic sample, the blank test body without the moisture absorbent in the test container shall be prepared and tested with the test body, the fluctuation of mass of the blank test body shall be measured, and the mass shall be corrected by adding to or reducing from the mass of the test body.

6.9 Compressive strength

The measurement of compressive strength shall be as specified in JIS K 7220 and as follows. The number of test specimens shall be three and the average shall be taken as the compressive strength.


1) The test specimen shall be prepared according to clause 7 of JIS K 7220 from the sample of 6.2.3 b).


2) When the sample thickness is under 50 mm, the test specimen thickness may be taken as the sample thickness.


30 A 9521 : 2014

b) Test apparatus The test apparatus shall be as specified in clause 6 of JIS K 7220.


1) The measurement of the compressive strength shall be as specified in clause 8 of JIS K 7220.

2) For the polyethylene foam thermal insulation materials, the test speed shall be 10 mm/min, and the compressive stress at the time of deformation rate of 25 % shall be taken as the compressive strength.

6.10 Bending strength


The measurement of bending strength shall be as specified in JIS K 7221-2, and as follows.

a) Test specimen The test specimen with the width of 50 mm and the length obtained by adding 50 mm to the span (L) shall be taken from the centre part excluding the peripheral part of the sample with the product thickness as it is. The span shall be 15 times the nominal thickness and shall be 150 mm or more. One sheet shall be taken from one product.

b) Test apparatus and test method The load shall be applied from the surface of test specimen at a mean deformation rate of about 10 mm/min using the test apparatus shown in figure 3, the maximum load (P) shall be measured and the bending strength shall be obtained according to formula (3).

The bending strength (0) shall be taken as the value obtained from the test result in the lengthwise direction and the crosswise direction, whichever is smaller.

3PL (5=- .............................................................................. (3)

2bt2

where,

Radius about 10

25

0: bending strength (N/mm2 )

P: maximum load (N)

L: span (mm)

b: width of test specimen (mm)

t: test specimen thickness (mm)

Unit:

Load

~ Radius 25 about 10

;...,

----'=---- ----'=----2 2

Radius L~ 150 about 10

mm

Figure 3 Example of test apparatus for bending strength test



31 A 9521 : 2014

The measurement of bending strength shall be as specified in JIS K 7221-2, and as follows.

a) Test specimen The test specimen shall be cut out from the sample of 6.2.3 b) in the predetermined dimensions according to clause 5 of JIS K 7221-5, and prepared. The number of test specimens shall be three.


b) Test apparatus The test apparatus shall be as specified in clause 4 of JIS K 7221-2.

c) Test method The test shall be as specified in clause 7 of JIS K 7221-2, and the average of three values shall be taken as the bending strength.

6.11 Combustibility

The combustibility test shall be as specified in Annex B.

6.12 Water absorption amount

The water absorption amount test shall be as specified in Annex C.

6.13 Swelling in thickness after immersion in water

The test of the swelling in thickness after immersion in water (TS) shall be as follows.

a) The test specimen shall be taken from the centre part except the peripheral part of the sample whose thickness is as the product thickness in the dimensions of 50 mm in width and 50 mm in length. One sheet shall be taken from one product.

b) The initial thickness of the test specimen at the centre part shall be measured to the nearest 0.05 mm by means of a dial gauge specified in JIS B 7503 or a micrometer specified in JIS B 7502. The test specimen shall be placed horizontally in water at 20°C ± 1 °C about 30 mm below the water surface, and immersed in this position for 2 h. The test specimen shall be taken out, the moisture is removed, and the thickness shall be measured, then the swelling shall be obtained according to formula (4).

t2 -t1 TS =--xl00 ..................................................................... (4) t1

where,

6.14 Moisture content

TS: swelling in thickness after immersion in water (%)

t1: thickness before immersion (mm)

t2: thickness after immersion (mm)

The test of moisture content shall be as follows.

a) The test specimen shall be taken from the centre part except the peripheral part of the sample whose thickness is as the product thickness in the dimensions of 100 mm in width and 100 mm in length. One sheet shall be taken from one product.


32 A 9521 : 2014

b) The mass (ml) of the test specimen before the test shall be measured, the test specimen shall be placed in an air dryer maintained at 103°C ± 2°C, and the mass (mo)

shall be measured when it has attained a constant mass, then the moisture content (MC) shall be calculated to one decimal place according to formula (5).

~ (rn! - rna) Me ::::: x 100 .............................................................. (5) rna

where, MC: moisture content (%)

mo: mass after drying (g)

m1: mass before drying (g)

6.15 Thermal resistance

The thermal resistance shall be calculated using the thermal conductivity and the thickness as follows. The calculation method of thermal resistance shall be as follows.

a) For the thermal conductivity (A.), the upper limit of values specified in table 7 to table 9 shall be used.

b) The thickness (d) shall be taken as the nominal thickness in table 11 and the minimum thickness to be permitted by the product.

c) The thermal resistance (R) shall be obtained according to formula (6), and rounded off to one decimal place.

7 Inspection

d R = - ................................................................................... (6) A

where, R: thermal resistance (m 2 • KIW)

d: thickness of thermal insulation material (m)

A: thermal conductivity [W/(m· K)]

7.1 Classification of inspections and inspection items

The inspections are classified into the type inspection 3) and the delivery inspection 4),

which shall consist of the following items, respectively.

The sampling for the type and delivery inspections shall be performed by the reasonable sampling plan as agreed between the parties concerned with delivery.

Notes 3) The type inspection is an inspection to judge if the quality of the product satisfies all the characteristics prescribed in the design, which is performed when the manufacturing facility is newly installed or changed, or when changes are made in the production conditions, etc.

4) The delivery inspection is an inspection performed at the delivery of thermal insulation materials which are of the same design and manufacture as the ones having already passed the type inspection to judge if the materials satisfy all the required characteristics.


a) Type inspection items

1) For man made mineral fibre thermal insulation materials

1.1) Thermal conductivity

1.2) Thermal resistance

1.3) Formaldehyde emission characteristics

1.4) Density

1.5) Dimensions

1.6) Appearance

2) For organic fibre thermal insulation materials




2.4) Moisture content

2.5) Bending strength

2.6) Swelling in thickness after immersion in water

2.7) Density

2.8) Dimensions

2.9) Appearance

3) For cellular plastics thermal insulation materials




3.4) Coefficient of moisture permeability

3.5) Compressive strength

33 A 9521 : 2014

3.6) Bending strength (except polyethylene foam thermal insulation material)

3.7) Combustibility (except rigid urethane foam thermal insulation material Class 2 and polyethylene foam thermal insulation material)

3.8) Water absorption amount

3.9) Density

3.10) Dimensions

3.11) Appearance

b) Acceptance inspection items

1) Man made mineral fibre thermal insulation materials


34 A 9521 : 2014

1.1) Appearance

1.2) Dimensions

1.3) Density

2) Organic fibre thermal insulation materials

2.1) Shape

2.2) Appearance

2.3) Dimensions

2.4) Density

2.5) Moisture content

2.6) Bending strength (except fibremat)

2.7) Swelling in thickness after immersion in water (except fibremat)

3) Cellular plastics thermal insulation materials

3.1) Appearance

3.2) Dimensions

3.3) Density

3.4) Compressive strength (except beads method polystyrene foam thermal insulation materials and rigid urethane foam thermal insulation materials)

3.5) Bending strength (except phenolic foam thermal insulation materials)

7.2 Judgement criteria

Products found to be in conformance with the requirements specified in clause 5 as the result of the tests performed according to clause 6 shall be accepted.

8 Designation of products

8.1 Symbols for designation of thermal conductivity

The symbols for the designation of thermal conductivity shall be as given in table 16. For the thermal conductivity, the maximum value specified in table 7 to table 9 for each type shall be used.

Table 16 Symbols for designation of thermal conductivity

Symbol Thermal conductivity

W/(m· K)

}'52 0.052 max.

}. 18 0.018 max.


35 A 9521 : 2014

8.2 Symbols for designation of thermal resistance

The symbols for the designation of thermal resistance shall be as given in table 17. For the thermal resistance, the value for thermal resistance obtained in 6.15 shall be used.

Table 17 Symbols for designation of thermal resistance

Symbol Thermal resistance m 2 .K/W

R 0.1 0.1 min.

R 2.1 2.1 min.

Interval of 0.1, same as above. Interval of 0.1, same as above.

8.3 Designation of products

The designation of products shall be expressed in the order of items as given in table 18 (see examples of table 18).

Table 18 Example of designation of product

Type or product Formaldehyde Thermal Thermal Nominal Classifica- Classifica-symbol emission conduc- resist- dimensions tion by tion by

character- tivity ance Thickness x packaging covering istics width x length material,

(mm) facing or skin layer

GWHG16-38 F**** J..38 R2.8 105 x 435 x 2 880 L VC

RWMA F**** J..38 R2.6 100 x 425 x 1360 L VC

1M F**** J..40 R2.4 100 x 385 x 1240

DIB F**** J..52 RO.7 40 x 900 x 1 210

EPS1 F**** J..34 R2.2 75 x 425 x 1 360

Extruded polystyrene F**** J..28 R1.8 50 x 910 x 910 X foam thermal

insulation material Class 3 aA

XPS3bA F**** J..28 R1.8 50 x 910 x 1 820

Rigid urethane foam F**** J..29 R1.7 50 x 1 000 x 1 500 thermal insulation material Class 1

PUF2.1 F**** J..23 R2.1 50 x 1 000 x 1 500 P

PE1.2 F**** J..42 RO.6 25 x 269 x 1 820

Phenolic foam thermal F**** J..22 R2.2 50 x 910 x 1 820 S insulation material

Class 1 No.2 AI


36 A 9521 : 2014

9 Marking

The following information shall be marked on the product or on the package of the product which conforms all the requirements specified in this Standard.

The marking may be given on each lot.

a) Title of this Standard or number of this Standard

b) Designation of product

c) Month and year of manufacture or their abbreviation

d) Manufacturer's name or its abbreviation

e) Other necessary items

For the man made mineral fibre thermal insulation materials, the following item shall be marked in addition to a) to e).

f) Notes on handling

1) Avoid exposure to rain.

2) When execution is performed, an air space shall be placed outdoors.

3) For the product with a vapour barrier layer, the vapour barrier layer shall face toward the indoor side.


A.l General

Annex A (normative)

Ignition test method

This Annex specifies the ignition test method.

A.2 Test apparatus

A.2.1 Configuration of test apparatus

37 A 9521 : 2014

The configuration of the test apparatus shall be as shown In figure A.1 (see figure A. 2).

A.2.2 Electric heating radiator

The electric heating radiator (hereafter referred to as "radiator") shall have dimensions as shown in figure A.3, and the radiation of 1 W/cm2 shall be obtained at the centre where a test specimen is installed. The distribution of radiation shall be 1 W/cm2

± 0.05 W/cm2 at the position within a diameter of 100 mm from the centre.

A.2.3 Test specimen moving device

The test specimen moving device shall have a mechanism in which a test specimen and an adjustment plate can be exchanged promptly, and a test specimen or a radiometer can be fixed to the designated position.

A.2.4 Accessories

The accessories shall be as follows.

a) The baffle plate shall be for not giving radiant heating to the test specimen until the test starts by inserting it between a radiator and a test specimen, and shall be made of stainless steel.

b) The adjustment plate shall be used instead of a test specimen until radiation is stabilized, and shall be a calcium silicate board specified in JIS A 5430.

A.2.5 Additional devices

The additional devices shall be as follows.

a) The power regulator of which the output voltage variation has an accuracy of ± 1 % shall suit the current capacity of a radiator, and shall be capable of adjusting to the designated radiation level.

b) The radiometer shall be capable of measuring the radiation intensity of 1 W/cm2 and the response to the change of radiant quantity shall have a response speed of 10 s or under until 95 % of the radiation designated value is reached. The radiant heatreceiving surface to use shall have an area of 10 mm or under in diameter and shall be flat and black. For the whole exposed surface of a radiometer, the whole area including the radiant heat-receiving surface shall not exceed 80 mm2

•


38 A 9521 : 2014

A.3 Preparation of test

A.3.1 Adjustment of radiation level of radiator

For the radiator, the adjustment plate specified in A.2.4 b) shall be installed at the test specimen installing position, and after supplying the current by which the radiation level specified in A.2.2 is obtained, the radiation level shall be measured at the position of the adjustment plate with a radiometer specified in A.2.5 b), and the measured value shall be confirmed that it is 1 W/cm2 ± 0.05 W/cm2

•

A.3.2 Preparation of test specimen

The sample with a covering material that has been dried at a temperature of 40°C ± 5 °C for 1 h shall be placed on a stainless steel saucer of an inner dimension of 165 mm x 165 mm, a thickness of 1 mm and a depth of 50 mm specified in JIS G 4305. When the thickness of the sample with a covering material is thick, the sample shall be adjusted to be about 50 mm in thickness. As shown in figure A.4, the test specimen shall be wholly wrapped with an aluminium foil of which the thickness is 0.015 mm to 0.020 mm and in which a hole of 140 mm in diameter is made at its centre.

A.4 Test method

The test shall be performed according to the following procedures and the existence of ignition shall be examined.

a) After confirming the radiation level specified in A.3.1, a baffle plate shall be inserted between a radiator and an adjustment plate, and the test specimen specified in A.3.2 shall be put in exchange for the adjustment plate.

b) Within 10 s after putting the test specimen, the baffle plate shall be removed.

c) The test time shall be 5 min and during that time whether the test specimen ignites or not shall be observed.

Power regulator

Power supply

Power meter

--=======--- Baffie plate

Recorder Radiometer

Position of surface of test specimen

Figure A.l Block diagram of apparatuses


39 A 9521 : 2014

Radiator

Baffle plate

Support frame

Pressure bonding plate

Figure A.2 Example of test apparatus configuration

:::

¢q5

¢75

¢220

Figure A.3 Radiator

Unit: mm

Ceramic fibre insulation material


40 A 9521 : 2014

Unit: mm

Aluminium foil

Test body

Stainless steel saucer (inner dimensions 165 x 165)

Figure A.4 Preparation method of test specimen


B.I General

Annex B (normative)

Combustibility test method

41 A 9521 : 2014

This Annex specifies the combustibility test method of cellular plastics thermal insulation materials among the thermal insulation materials for dwellings and buildings. However, two types, polyethylene foam thermal insulation materials and rigid urethane foam thermal insulation materials, are out of scope.

B.2 Test method

The measurement of combustibility shall be as specified in the following measuring method A, measuring method B or measuring method C.

B.2.1 Measuring method A

The measuring method A shall apply to the beads method polystyrene foam thermal insulation materials and extruded polystyrene foam thermal insulation materials, and shall be as follows.

a) Five test specimens of about 10 mm in thickness, about 200 mm in length, and about 25 mm in width shall be cut out from the sample.

Then, the indicating line of ignition limit and the indicating line of combustion limit as shown in figure B.l shall be marked on the test specimen.

o

c...., o

Unit: mm

Test specimen Thickness about 10

c

~ Candle for fire source ~ ~

Figure B.I Combustibility test


42 A 9521 : 2014

b) A candle for fire source which is about 20 mm in diameter and produces a flame of about 50 mm or more in length and about 7 mm or more in thickness when the length of wick is about 10 mm during stationary combustion shall be used.

c) The relation between the test specimen and the candle for fire source shall be established as shown in figure B.lo The candle shall be made to be horizontally movable, its wick shall be erected in vertical position, and the flame shall be confirmed that it is the specified one.

The flame not flaring shall be applied to the end a of the test specimen (see figure B.l), and the candle shall be moved at a uniform speed by spending about 5 s until the flame reaches the indicating line of ignition limit.

When it has reached the indicating line of ignition limit, the flame shall be rapidly made back, the time (s) from the instance until the flame is extinguished shall be measured, and whether embers are present or not, and the stop position of combustion shall be confirmed. The average of flame-extinguishing time of five test specimens shall be obtained.

B.2.2 Measuring method B

The measuring method B shall be applicable to the rigid urethane foam thermal insulation material Class 1 as follows.

a) Five test specimens of about 13 mm in thickness, about 150 mm in length and about 50 mm in width shall be cut out from a sample.

If the thickness of the sample is under 13 mm, the thickness of the sample as it is shall be used.

b) The test apparatus shall, as shown in figure B.2, consist of fish-tail Bunsen burner, frame for setting test specimen (hereafter referred to as "frame for setting") and table for fixing the frame for setting (hereafter referred to as "frame fixing table").

Fish-tail burner

Unit: mm

Wire net table

Frame for setting

Aluminium foil

~ Frame fixing table

Figure B.2 Test apparatus


43 A 9521 : 2014

1) The frame for setting shall be of about 75 mm in length, about 250 mm in width and 175 mm ± 25 mm in height.

The height shall be sufficient to keep 13 mm ± 1 mm away from the apex of fish -tail burner.

2) The frame fixing table shall be covered with aluminium foil on its upper surface.

3) On the frame for setting, the wire net of approximately 0.8 mm in diameter and 6.5 mm in net spacing shall be put in a state of 75 mm in length, 15 mm of which is bent at right angle at its end and 215 mm in width as shown in figure B.2 to be used as the table (hereafter referred to as "wire net table").

4) The Bunsen burner shall be equipped with a fish-tail burner of 48 mm in width. The fuel used for the Bunsen burner shall be propane gas.

5) The testing apparatus shall be set in a draft.

c) The test specimen shall be put on the wire net table as shown in figure B.3, and the flame of the Bunsen burner shall be applied to the test specimen adjusting it to the state of inner core luminous flame of 6.5 mm ± 1 mm and non-luminous flame of 38 mm ± 2 mm as shown in figure B.4. After applying the flame for 60 s, the Bunsen burner shall be taken away and kept at least 150 mm away from the test specimen.

Wire net table

Figure B.3 Mounting of test specimen


Unit: mm

44 A 9521 : 2014

+1 (Y)

Test specimen

Wire net table

Non-luminous flame (height 38 ± 2)

Inner core luminous flame (height 6.5 ± 1)

Fish-tail burner

Figure B.4 Flame application

Unit: mm

d) The time (s) from applying the flame to the test specimen until going out of the flame and the length (mm) of the part of the largest burning length out of the burnt part of the test specimen shall be measured. The average of five test specimens shall be obtained.

e) The aluminium foil and the wire net table on the flame fixing table shall be replaced by the new ones every time of testing.

The apex of the fish-tail burner shall be also cleaned thoroughly every time of testing.

B.2.3 Measuring method C The measuring method C shall be applicable to the phenolic foam thermal insulation

materials, and the test method shall be as specified in JIS K 7201-2. The test specimen shall be cut out from the base material and the type of test specimen shall be II.


C.I General

Annex C (normative)

Water absorption test method

45 A 9521 : 2014

The measurement of water absorption amount shall be as the following measuring method A or measuring method B (alcohol method).

C.2 Test specimen

Three test specimens of the dimensions about 25 mm in thickness, about 100 mm in width and about 100 mm in length shall be cut out from the sample specified in 6.2.3 b). The dimensions are measured to the nearest 0.1 mm. The sample having skin layer or facing, or the sample whose thickness is under 25 mm may be used as the test specimen as it is.

C.3 Measuring method A

This test method is applicable to beads method polystyrene foam thermal insulation materials, rigid urethane foam thermal insulation materials, polystyrene foam thermal insulation materials and phenolic foam thermal insulation materials.

a) Test method

1) The test specimen specified in the test method shall be immersed at a depth of 50 mm below the surface of the fresh water at 23°C ± 3 °C put into a container and taken out after 10 s. After putting it on the wire net of opening mesh of about 3 mm inclined by 30 degrees from the vertical line for 30 s, the mass shall be measured to the nearest 0.01 g and taken as the reference mass. Then, it shall be again immersed into the fresh water, and after water is made absorbed for 24 h, the mass shall be measured by the same method as that at the time of measuring the reference mass.

2) The amount of water absorption (Wa) per surface area 100 cm2 shall be obtained according to formula (C.1) and expressed by the average of three measurements of test specimen.

m[ -mo 2 Wa= A xlOOcm ...................................................... ······(C.1)

where, Wa: water absorption amount (g)

rna: reference mass (g)

rn1: mass after final water absorption (g)

A: whole surface area (cm2)

3) The average of three test specimens shall be taken as the water absorption amount.

C.4 Measuring method B (alcohol method)

This test method shall be applicable to the extruded polystyrene foam thermal insulation materials.


46 A 9521 : 2014

a) Test method The test specimen shall be immersed at a depth of 50 mm below the surface of the fresh water at 23°C ± 3 °C put into a container and taken out after 10 s. After putting it on the wire net of opening mesh of about 3 mm inclined by 30 degrees from the vertical line for 30 s, the mass shall be measured to the nearest 0.01 g and taken as the reference mass. Then, it shall be again immersed into the fresh water, and after water is made absorbed for 24 h, the mass shall be measured by the same method as that at the time of measuring the reference mass.

In order to reduce the influence of adhesive moisture, before and after the operation of absorbing water for 24 h, the moisture on the surface shall be wiped off with gauze and the like. The test specimen shall be immersed into ethanol for 10 s, again the surface shall be wiped with gauze and the like, and after allowing to stand for 60 min, the mass shall be measured. This mass shall be taken as the reference mass and the mass after final water absorption respectively.

The amount of water absorption (Wa) per surface area 100 cm2 shall be obtained according to formula (C.2) and expressed by the average of three measurements of test specimen.

rnj -rno 2 Wa= A xlOOcm ...................................................... ······(C.2)

where, Wa: water absorption amount (g)

rno: reference mass (g)

rnl: mass after final absorption (g)

A: whole surface area (cm2 )


"'d ~ o ~ t:rj o ~ t:rj

t::J

OJ ~

o o ~ ~

Q ::r: ~

Annex D (informative)

Comparison table between previous and current editions of this Standard on technically significant revisions

Current edition (JIS A 9521: 2014) Previous edition (JIS A 9521: 2011) Reason for revision

Number and Content Number and Content title of clause title of clause

1 Scope Thermal insulation materials used 1 Scope Applicable to man made mineral Scope is enlarged as the integrated at the ordinary temperature which wool thermal insulation materials standard of the thermal insulation ma-are applicable to broad range of used for dwellings. terials used for buildings. buildings including dwellings.

4.1 Classifica- Classified according to base materi- 4 Classification Classified according to materials, Classification is altered because the tion als, packaging and covering materi- packaging and covering materials. scope of applicable thermal insulation

als, and facing or skin layer, and the materials is enlarged. product numbers and types are listed in the table.

5 Quality Characteristics, dimensions, appear- 5 Quality Thermal resistance and formalde- Requirement for thermal performance ance are specified. hyde emission characteristics are specified by thermal resistance is al-

Thermal performance is specified by specified. tered to thermal conductivity which

the thermal conductivity. indicates the thermal performance spe-cific to a product. The conversion method for the thermal resistance is also specified.

5.2 Dimensions Thickness, width and length are 6 Dimensions Thickness, width and length are Since the market demands are being specified indicating the range, and specified and tolerances thereof are complicated, dimensions are specified tolerances in the said range are specified. indicating the range to respond to the specified. demands of users flexibly.

6 Tests Test methods for quality are speci- 8 Tests Dimensions, formaldehyde emission Test methods for the characteristics are fied according to the types of ther- characteristics and thermal resis- individually specified according to the mal insulation materials. tance are specified. types of thermal insulation materials.

6.1 Test place Conditioning of test specimens, tem- Since for the cellular plastics thermal and condition- perature and humidity of test place, insulation materials, the temperature ing before test- etc. are specified according to the and humidity at the test place and the ing types of thermal insulation materi- conditioning time are important, they

also are specified, and also for all the types, they are similarly specified.

> CO 01 t--:) I--'-

t--:) o I--'-~ ~-::)

"'0 ~ o ~ M (1 ~ M U

t:d ~

(1

o ~ ~

S ::r: ~

Current edition (JIS A 9521: 2014)

Number and Content title of clause

6.2 Sampling Sampling methods are specified and preparation according to the types of thermal of test specimen insulation materials.

6.15 Thermal Calculation method to obtain ther-resistance mal resistance from thermal conduc-

tivity and nominal thickness is specified.

7 Inspection Specified according to the types of thermal insulation materials.

8 Designation Designations for thermal conductiv-of products ity and thermal resistance are speci-

fied, and examples of designation of product according to the types are shown.

Annex B Combustibility test method appli-cable to cellular plastics thermal insulation materials is specified.

Annex C Water absorption test method appli-cable to cellular plastics thermal insulation materials is specified.

Previous edition (JIS A 9521: 2011)

Number and Content title of clause

10 Designation Examples of designation of products are shown.

Reason for revision

Since the sampling methods differ ac-cording to the types of thermal insula-tion materials, they are made clear.

Since thermal resistance serves as a necessary thermal characteristic for users, the conversion method is speci-fied.

Since characteristics differ according to the types of thermal insulation materi-als, inspection is individually specified.

Although designation of thermal resis-tance has been conventionally specified in the clause of quality, it is determined that it is appropriate to specify in the clause of designation.

To make this Standard applicable to cellular plastics thermal insulation materials.

To make this Standard applicable to cellular plastics thermal insulation materials.

>~ 00 co·

01 t--:) I--l

t--:) o I--l ~

Errata for JIS (English edition) are printed in Standardization and Quality Conti'oJ, published monthly by the Japanese Standards Association, and also provided to subscribers of JIS (English edition) in Monthly InfOl'mation.

Errata will be provided upon request, please contact: Publishing Group, Japanese Standards Association Mita MT Building, 3-13-12, Mita, Minato-ku, Tokyo, 108-0073 JAPAN TEL. 03-4231-8550 FAX. 03-4231-8665


Download - JIS A 9521 - zb.guaihou.comzb.guaihou.com/stdpool/JIS A 9521-2014-en.pdf · JIS B 7502 Micrometer callipers JIS B 7503 Mechanical dial gauges JIS B 7507 Vernier, dial and digital

Top Related